Introduction

Although the Ecodrive watches made by Citizen contain a rechargeable battery, after a long period of usage the battery is no longer able to hold a charge. When that occurs, it would be less expensive to replace the battery instead of buying a new watch. This guide demonstrate how to properly perform that on a Citizen Ecodrive watch.

Parts

No parts required.

Remove pin from watch band link to obtain easier access to the back of the watch.
  • Remove pin from watch band link to obtain easier access to the back of the watch.

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Using the adjustable wrench, unscrew the back face of the watch. Using the adjustable wrench, unscrew the back face of the watch.
  • Using the adjustable wrench, unscrew the back face of the watch.

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Using the sim removal tool, carefully pry the capacitor from its current location.
  • Using the sim removal tool, carefully pry the capacitor from its current location.

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Replace the capacitor with the new lithium capacitor. Make sure the positive side is facing upward.
  • Replace the capacitor with the new lithium capacitor.

  • Make sure the positive side is facing upward.

  • When reinserting capacitor, make sure the brass connector is inserted into the inlet of the battery slot.

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Pull the knob out for thirty seconds to place the watch in its "all reset" mode. Pull the knob out for thirty seconds to place the watch in its "all reset" mode.
  • Pull the knob out for thirty seconds to place the watch in its "all reset" mode.

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Conclusion

To reassemble your device, follow the steps in reverse order.

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Billy Tat

Member since: 02/28/2017

353 Reputation

5 Guides authored

3 Comments

How about citizen c605? How to open for replace capacitor?cheers

Citizen alex - Reply

Before doing any repairs it might be a good idea to do these:

1. Place the watch to bright sunshine for one full day the dial facing straight to the sun.

2. After the sun treatment pull the knop fully out and keep it that way for 30 seconds (or more).

3. Press the knop back in and wait for 10 seconds.

4. If the watch now works normally, you saved the battery price and your fixing work…

5. If not, you unfortunately have to do as instructed here.

Good luck!

Seppo Nikkilä - Reply

Does the Capacitor of an Eco-drive watch has a tendency to leak?

citizen ph - Reply

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